MEGAPLUS GigE Vision Features Manual - page 7
4411-0128 Rev. A
07/28/09
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Section 2. Camera Attributes
2.1 Acquisition and Trigger Controls
Acquisition and Trigger Controls lists all features that relate to actual image acquisition,
including the triggering mode.
Integration time is the amount of time the sensor collects photons for a single acquisition.
Important Things to Know
MEGAPLUS offers two integration time controls: one for free-run integration time and one
for triggered operation. If you are running the camera in triggered mode, you must use the
TriggerIntTime feature to control integration time.
The range of integration time values available is determined by 1) tap readout
configuration, 2) pixel clock speed, and binning level. Any time that you change any of
these parameters, the maximum and minimum free-run integration time values will also
change. Therefore, whenever you change readout (
SensorTapReadout), speed
(
CamPixClkSpeed), or binning level (Binning), the ExposureTimeMax feature will
automatically go out and get the new maximum value.
AcquisitionFrameCount: (R/W) Not available for MEGAPLUS cameras.
AcquisitionMode: (R/W)This feature controls the acquisition mode of the device. It defines
mainly the number of frames to capture during an acquisition and the way the acquisition
stops. AcquisitionMode can take any of the following values:
• SingleFrame: One frame is captured.
• MultiFrame: Not available for MEGAPLUS cameras.
• Continuous: Frames are captured continuously until stopped with the
AcquisitionStop command.
ExposureTimeAbs: (R/W) This feature is used to set the Exposure time (in microseconds)
when ExposureMode is Timed. This controls the duration where the photosensitive cells
are exposed to light.
TriggerSoftware: (Write) This feature is used to generate an internal trigger when
TriggerSource is set to Software.